Biodiversity & Conservation

, Volume 15, Issue 6, pp 1913–1942 | Cite as

Ecological Predictors of Extinction Risk in the Flora of Lowland England, UK

  • Kevin J. Walker
  • Christopher D. Preston
Special Issue: Extinction Risk: Predicting, Assessing, Prioritising and Redressing


We used historical and contemporary records to determine the scale of plant extinction in Bedfordshire and Northamptonshire, and to assess whether extinct species share a range of ecological and phytogeographical traits. Since 1700 both counties have lost 94 species (11% of their native floras) with the rate of extinction increasing from 3.8 to 4.8 species per decade in the 19th century to 6–8 species per decade after 1950. The most important predictors of extinction risk were English range size and traits associated with habitat specialisation and competitive ability: poor competitors (i.e. short stress-tolerators) associated with open habitats with very low or high pH and soil moisture (e.g. lowland bogs, dwarf-shrub heath and acid and calcareous grassland) were much more likely to have become extinct in the study region than would have been expected by chance alone. Many of these species have very localised distributions and/or occur at the northern, southern or eastern edges of their range in southern England (i.e. Northern and Oceanic). In contrast, there was no clear or significant relationship between extinction and dispersal ability or reproductive mode. These findings, which parallel national trends, indicate that habitat loss and eutrophication have been the main causes of population extinction in lowland England over the last 300 years. However, more fine-scaled studies are required to assess whether ‘low-level’ stresses, such as habitat fragmentation, climate change and atmospheric pollution, are having additional impacts on populations already severely depleted by habitat loss, as well as to quantify changes in the abundance of more widespread species which are known to have declined over the same period.


Eutrophication Extinction risk Habitat loss Land use change Plant traits 


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  1. Abbott, C. 1798Flora BedfordiensisW. SmithBedford, UKGoogle Scholar
  2. Beebee, T.J.C. 2001British wildlife and human numbers: the ultimate conservation issue?Br. Wildl.1318Google Scholar
  3. Bignal, E.M., MacCracken, D.I. 1996Low-intensity farming systems in the conservation of the countrysideJ. Appl. Ecol.33413424CrossRefGoogle Scholar
  4. Bobbink, R., Hornung, M., Roelefs, J.G.M. 1998The effects of airborne nitrogen pollutants on species diversity in natural and semi-natural European vegetationJ. Ecol.86717738CrossRefGoogle Scholar
  5. Boon, C.R. 1998British and Irish floristic elements applied to the Bedfordshire floraBedfordshire Nat.527891Google Scholar
  6. Byfield, A., Pearman, D.A. 1994Dorset’s Disappearing Heathland Flora. Changes in the Distribution of Dorset’s Rarer Heathland Species 1931 to 1993Plantlife and RSPBLondon, UKGoogle Scholar
  7. Cheffings, C. 2004New plant status lists for Great BritainBSBI News953643Google Scholar
  8. Clapham, A.R., Tutin, T.G., Moore, D.M. 1987Flora of the British Isles3Cambridge University PressCambridge, UKGoogle Scholar
  9. Colston, A., Jackson, M., Moore, L., Tero, C. 1996Northamptonshire’s Red Data Book: Species to Watch in the CountyEnglish Nature and Northamptonshire Wildlife TrustNorthampton, UKGoogle Scholar
  10. Crawley, M.J., Harvey, P.H., Purvis, A. 1996Comparative ecology of the native and alien floras of the British IslesPhil. Trans. R. Soc. Lond. B35112511259CrossRefGoogle Scholar
  11. Dandy, J.E. 1969Watsonian Vice-counties of Great BritainThe Ray SocietyLondon. UKGoogle Scholar
  12. Dony, J.G. 1953Flora of BedfordshireThe Corporation of Luton Museum and Art GalleryLuton, UKGoogle Scholar
  13. Dony, J.G. 1974Changes in the flora of HertfordshireTrans. Hertfordshire Nat. Hist. Soc.27255264Google Scholar
  14. Dony, J.G. 1976Bedfordshire Plant AtlasBorough of Luton Museum and Art GalleryLuton, UKGoogle Scholar
  15. Dony, J.G. 1977Change in the flora of BedfordshireEnglandfrom 1798 to 1976Biol. Conserv.11307320CrossRefGoogle Scholar
  16. Druce, G.C. 1930The Flora of NorthamptonshireT. Buncle & CoArbroath, UKGoogle Scholar
  17. Ellenberg, H. 1988Vegetation Ecology of Central Europe4Cambridge University PressCambridge, UKGoogle Scholar
  18. Ellenberg, H., Weber, H.E., Düll, R., Wirth, V., Werner, W., Paulissen, D. 1991Zeigerwerte von Pflanzen MittleeuropaScr. Geobot.181248Google Scholar
  19. English Nature1994Grassland Inventory. BedfordshireEnglish NaturePeterborough, UKGoogle Scholar
  20. English Nature1995Grassland Inventory. NorthamptonshireEnglish NaturePeterborough, UKGoogle Scholar
  21. Fitter, A.H., Peat, H.J. 1994The ecological flora databaseJ. Ecol.82415425CrossRefGoogle Scholar
  22. Fuller, R.J., Gough, S.J. 1999Changes in sheep numbers in Britain: implications for bird populationsBiol. Conserv.917389CrossRefGoogle Scholar
  23. Galloway, J.N., Cowling, E.B. 2002Reactive nitrogen and the world: 200 years of changeAmbio316471PubMedGoogle Scholar
  24. Gent, G.Wilson, R. eds. 1995The Flora of Northamptonshire and the Soke of PeteroroughRobert Wilson DesignsRothwell, UKGoogle Scholar
  25. Gerarde J. 1597. The Herbal or Generall Historie of Plantes. London, UK.Google Scholar
  26. Greenwood, E.F. 2003Understanding change: a Lancashire perspectiveWatsonia24337350Google Scholar
  27. Harrison P.A., Berry P.M. and Dawson T.P. (eds) 2001. Climate change and nature conservation in Britain and Ireland: modelling natural resource responses to climate change (the MONARCH Project): technical report. Oxford, UKCIP.Google Scholar
  28. Hill, M.O., Mountford, J.O., Roy, D.B., Bunce, R.G.H. 1999Ellenberg’s Indicators Values for British Plants. ECOFACT Volume 2. Technical AnnexInstitute of Terrestrial EcologyMonks Wood, UKGoogle Scholar
  29. Hill, M.O., Roy, D.B., Mountford, J.O., Bunce, R.G.H. 2000Extending Ellenberg’s indicator values to a new area: an algorithmic approachJ. Appl. Ecol.37315CrossRefGoogle Scholar
  30. How W. 1650. Phytologia Britannica. London, UK.Google Scholar
  31. Jackson D.L. 2000. Guidance on the interpretation of the biodiversity broad habitat classification (terrestrial and freshwater): definitions and the relationship with other habitat classifications. Joint Nature Conservation Committee Report No. 307. JNCC, Peterborough.Google Scholar
  32. James, T.J. 1997The changing flora of HertfordshireTrans. Hertfordshire Nat. Hist. Soc.336284Google Scholar
  33. Keech, T.J. 1995The climateGent, G.Wilson, R. eds. The Flora of Northamptonshire and the Soke of PeteroroughRobert Wilson DesignsRothwell, UK2022Google Scholar
  34. Marren, P. 1999County florasBr. Wildl.10373380Google Scholar
  35. McCollin, D., Moore, L., Sparks, T.H. 2000The flora of a cultural landscape: environmental determinants of change revealed using archival sourcesBiol. Conserv.92249263CrossRefGoogle Scholar
  36. Micheals N. 1996. Lowland Heathland in England. A Natural Areas approach. English Nature Research Report No. 170, English Nature, Peterborough, UK.Google Scholar
  37. Morton J. 1712. The Natural History of Northamptonshire. London, UK.Google Scholar
  38. Nau, B.S.Boon, C.R.Knowles, J.P. eds. 1987Bedfordshire Wildlife.Castlemead PublicationsWare, UKGoogle Scholar
  39. NEGTAP 2001. Transboundary air pollution: acidification, eutrophication and ground-level ozone in the UK. National Expert Group on Transboundary Air Pollution, prepared on behalf of the UK Department of the EnvironmentTransport and the Regions and the devolved administrations by the Centre for Ecology and Hydrology, Edinburgh, UK.Google Scholar
  40. Notcutt, W.L. 1843A catalogue of plants observed in the neighbourhood of Daventry, NorthamptonshirePhytologist1500508Google Scholar
  41. Pearman, D.A. 1996Towards a new definition of rare and scarce plantsWatsonia21225245Google Scholar
  42. Peñuelas, J., Filella, I. 2001Herbaria century record of increasing eutrophication in Spanish terrestrial ecosystemsGlobal Change Biol.7427433CrossRefGoogle Scholar
  43. Perring, F.H. 1995Druce in NorthamptonshireWatsonia20185194Google Scholar
  44. Preston, C.D. 2000Engulfed by suburbia or destroyed by the plough: the ecology of extinction in Middlesex and CambridgeshireWatsonia235981Google Scholar
  45. Preston, C.D., Hill, M.O. 1997The geographical relationships of British and Irish plantsBot. J. Linn. Soc.1241120CrossRefGoogle Scholar
  46. Preston, C.D., Croft, J.M. 1997Aquatic Plants in Britan and IrelandHarley BooksColchester, UKGoogle Scholar
  47. Preston C.D., Pearman D.A., and Dines T.D. and (comps & eds) 2002a. The New Atlas of the British and Irish Flora. Oxford University Press, Oxford, UK.Google Scholar
  48. Preston, C.D., Telfer, M.G., Arnold, H.R., Carey, P.D., Cooper, J.M., Dines, T.D., Hill, M.O., Pearman, D.A., Roy, D.B., Smart, S.M. 2002bThe Changing Flora of the UKDEFRALondon, UKGoogle Scholar
  49. Preston, C.D., Sheail, J., Armitage, P., Davy-Bowker, J. 2003aThe long-term impact of urbanisation on aquatic plants: Cambridge and the River CamSci. Total Environ.314–3166787CrossRefGoogle Scholar
  50. Preston, C.D., Telfer, M.G., Roy, D.B., Carey, P.D., Hill, M.O., Meek, W.R., Rothery, P., Smart, S.M., Smith, G.M., Walker, K.J., Pearman, D.A. 2003bThe changing distribution of the flora of the United Kingdom: technical reportCentre for Ecology and HydrologyHuntingdon, UKGoogle Scholar
  51. Preston, C.D., Pearman, D.A., Hall, A.R. 2004Archaeophytes in BritainBot. J. Linn. Soc.145257294CrossRefGoogle Scholar
  52. Quinn, R.M., Lawton, J.H., Eversham, B.C., Wood, S.N. 1994The biogeography of scarce vascular plants in Britain with respect to habitat preferencedispersal ability and reproductive biologyBiol. Conserv.70149157CrossRefGoogle Scholar
  53. Ratcliffe, D. 1984Post-medieval and recent changes in British vegetation: the culmination of human influenceNew Phytol.9873100CrossRefGoogle Scholar
  54. Ray J. 1660. Catalogus Plantarum circa Cantabrigiam Nascentium. Cambridge and London, UK.Google Scholar
  55. Richards, A.J. 1986Plant Breeding SystemsChapman and HallLondon, UKGoogle Scholar
  56. Robertson, J. 1982Plant extinction in BedfordshireBedfordshire Naturalist365558Google Scholar
  57. Robinson, R.A., Sutherland, W.J. 2002Post-war changes in arable farming and biodiversity in Great BritainJ. Appl. Ecol.39157176CrossRefGoogle Scholar
  58. Sanderson, N.A. 1998A review of the extentconservation interest and management of lowland acid grassland in England: Volume II (County descriptions). English Nature Research Report no. 259English NaturePeterborough, UKGoogle Scholar
  59. Shaw, P. 2005Estimating local extinction rates over successive time-framesBiol. Conserv.121281287CrossRefGoogle Scholar
  60. Smart, S.M., Bunce, R.G.H., Marrs, R., Le Duc, M., Firbank, L.G., Maskell, L.C., Scott, W.A., Thompson, K., Walker, K.J. 2005Large-scale changes in the abundance of common higher plant species across Britain between 1978, 1990 and 1998 as a consequence of human activity: tests of hypothesised trait representationBiol. Conserv.124355371CrossRefGoogle Scholar
  61. Stace, C.A. 1997New flora of the British Isles2Cambridge University PressCambridge, UKGoogle Scholar
  62. Stamp, L.D. eds. 1943aThe land of Britain. The Report of the Land Utilisation Survey of Britain. Part 58 – Northamptonshire and Part 59 – Soke of PeterboroughGeographical Publications LtdLondon, UKGoogle Scholar
  63. Stamp, L.D. eds. 1943bThe Land of Britain. The Report of the Land Utilisation Survey of Britain. Part 55 - BedfordshireGeographical Publications LtdLondon, UKGoogle Scholar
  64. Stevens, C.J., Dise, N.B., Mountford, J.O., Gowing, D.J. 2004Impact of nitrogen deposition on the species richness of grasslandsScience30318761879PubMedCrossRefGoogle Scholar
  65. Sutcliffe, O.L., Kay, Q.N. 2000Changes in the arable flora of southern England since the 1960sBiol. Conserv.9318CrossRefGoogle Scholar
  66. Sutherland, D.S. 1995Geology and soilsGent, G.Wilson, R. eds. The Flora of Northamptonshire and the Soke of PeteroroughRobert Wilson DesignsRothwell, UK2330Google Scholar
  67. Telfer, M.G., Preston, C.D., Rothery, P. 2002A general method for the calculation of relative change in range size from biological atlas dataBiol. Conserv.10799107CrossRefGoogle Scholar
  68. Thomas, A.S. 1960Changes in vegetation since the advent of myxomatosisJ. Ecol.48287306CrossRefGoogle Scholar
  69. Thomas, I. 1995Some Northamptonshire botanistsGent, G.Wilson, R. eds. The Flora of Northamptonshire and the Soke of PeteroroughRobert Wilson DesignsRothwell, UK1519Google Scholar
  70. Thompson, K. 1994Predicting the fate of temperate species in response to human disturbance and global changeBoyle, T.J.B.Boyle, C.E.B. eds. Biodiversity, Temperate Ecosystems, and Global ChangeSpringer-VerlagBerlin6176CrossRefGoogle Scholar
  71. Thompson, K., Hodgson, J.G. 1996More on the biogeography of scarce vascular plantsBiol. Conserv.75299302CrossRefGoogle Scholar
  72. Thompson, K., Jones, A. 1999Human population density and prediction of local plant extinction in BritainConserv. Biol.13185189CrossRefGoogle Scholar
  73. Vitousek, P.M., Aber, J.D., Howarth, R.W., Likens, G.E., Matson, P.A., Schindler, D.W., Schlesinger, W.H., Tilman, D.G. 1997Human alteration of the global nitrogen cycle: sources and consequencesEcol. Appl.7737750Google Scholar
  74. Walker, K.J. 2003aUsing data from local floras to assess floristic changeWatsonia34305319Google Scholar
  75. Walker, K.J. 2003bOne species lost every year? An evaluation of plant extinctions in selected British vice-counties since 1900.Watsonia34359374Google Scholar
  76. Weiher, E., Werf, A., Thompson, K., Roderick, M., Granier, E., Eriksson, O. 1999Challenging Threophrastus: a common core list of plant traitsJ. Veg. Sci.10609620CrossRefGoogle Scholar
  77. Wells, T.C.E. 1968Land-use changes affecting Pulsatilla vulgaris in EnglandBiol. Conserv.13743CrossRefGoogle Scholar
  78. Wells, T.C.E. 1989The effects of changes in land use on the flora of Huntingdonshire and the Soke of Peterborough in the period 1949–89Wells, T.C.E.Cole, J.H.Walker, P.E.G. eds. 40 Years of Change in the CountyHuntingdonshire Flora and Fauna SocietyHuntingdon, UKGoogle Scholar
  79. Williams, M. 1970The enclosure and reclamation of waste land in England and Wales in the eighteenth and nineteenth centuriesTrans. Br. Geogr.515570CrossRefGoogle Scholar
  80. Williamson, M.H., Fitter, A. 1996The characters of successful invadersBiol. Conserv.78 163170CrossRefGoogle Scholar

Copyright information

© Springer 2006

Authors and Affiliations

  • Kevin J. Walker
    • 1
  • Christopher D. Preston
    • 1
  1. 1.NERC Centre for Ecology and HydrologyHuntingdonUK

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